Plasma display panel with dielectric layer containing a filler of mica coated with titanium dioxide

Abstract

A plasma display panel includes a dielectric layer in which a filler for enhancing reflectance is dispersed. To increase luminescence efficiency, the filler consists of flakes oriented in parallel to the surface of the dielectric layer.

1. A plasma display panel comprising:
 a dielectric layer in which a filler for enhancing reflectance is dispersed; and  
 barrier ribs for partitioning a discharge space, wherein sidewalls of the barrier ribs are covered with the dielectric layer,  
 wherein the filler comprises pieces individually having outward appearance of flakes whose front and back faces are oriented in a direction along a surface of the dielectric layer, and the dielectric layer is formed using a hollow form provided with recesses in a pattern corresponding to the form of the barrier ribs and has a dielectric constant ≦10.  
 wherein the filler is mica coated with titanium dioxide.  
 
     
     
       2. A plasma display panel according to  claim 1 , wherein the dielectric layer contains a low-melting-point glass as a base material. 
     
     
       3. A plasma display panel according to  claim 2 , wherein the content of the filler in the dielectric layer is a value within the range of 10 to 80 wt %. 
     
     
       4. A plasma display panel according to  claim 1 , wherein the dielectric layer contains silicon oxide as a base material. 
     
     
       5. A plasma display panel according to  claim 4 , wherein the content of the filler in the dielectric layer is a value within the range of 10 to 80 wt %. 
     
     
       6. A plasma display panel according to  claim 1 , wherein the barrier ribs are black. 
     
     
       7. A plasma display panel according to  claim 6 , wherein the black barrier ribs have a transmission per unit length of 10%/10 μm or less to visible light. 
     
     
       8. A plasma display panel according to  claim 6 , wherein the dielectric layer has a reflectance per unit length of 50%/10 μm or more. 
     
     
       9. A substrate structure to be used for fabrication of a plasma display panel as set forth in  claim 1 , which is provided with the barrier ribs and the dielectric layer. 
     
     
       10. A substrate structure according to  claim 9 , wherein the barrier ribs are black. 
     
     
       11. A plasma display panel according to  claim 1 , wherein a light-shielding layer is provided on a front side with respect to a discharge space and the dielectric layer is provided on a rear side with respect to the light-shielding layer. 
     
     
       12. A substrate structure to be used for fabrication of a plasma display panel as set forth in  claim 11 , wherein the light-shielding layer and the dielectric layer are provided on a substrate.